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1-http://www.mts.net/~william5/history/hol.htm 2 - http://www.hellenicpantheon.gr/theogony1.htm 3- . (2006) . ., . 4 -http://users.att.sch.gr/xtsamis/OkosmosMas/Fos/PeriFotos.htm 5-http://light.physics.auth.gr/history/ancient/pythagoreans.html 6-http://el.wikipedia.org/wiki/%CE%A1%CE%B1 7- , ,.. 8-Farrington,B (1989), H , ,. 9 http://el.wikipedia.org/wiki/%CE%91%CE%BB%CE%BC%CE%B1%CE%B3%CE%AD%CF%83%CF%84%CE%B7 10-Singh S. (2005),Bing Bang, , . 11- E.Segre(1997), , .,. 12-D.Bodanis(2007), ,. ,.